* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: #f9f9f9;
    width: 390px;
    margin: 0 auto;
    color: #333;
}

.header {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    border-bottom: 1px solid #eee;
    background: #fff;
}

.header .back {
    text-decoration: none;
    font-size: 16px;
    color: #000;
}

.header .title {
    margin-left: auto;
    margin-right: auto;
    font-size: 18px;
    font-weight: bold;
}

.suggestion-container {
    padding: 20px;
}

.suggestion-text {
    width: calc(100% - 40px);
    height: 150px;
    padding: 10px;
    margin: 20px auto;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    resize: none;
    outline: none;
}

.contact-input {
    width: calc(100% - 40px);
    height: 40px;
    padding: 10px;
    margin: 10px auto 20px;
    font-size: 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    display: block;
    outline: none;
}

.submit-btn {
    width: calc(100% - 40px);
    height: 50px;
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    color: #fff;
    background: linear-gradient(90deg, #FFA800, #FFCC00);
    border: none;
    border-radius: 25px;
    display: block;
    margin: 0 auto;
    cursor: pointer;
}

.submit-btn:hover {
    background: linear-gradient(90deg, #FF8C00, #FFC107);
}

.footer {
    text-align: center;
    margin-top: 20px;
    font-size: 12px;
    color: #666;
}

.footer a {
    text-decoration: none;
    color: #666;
    margin: 0 5px;
}

.footer span {
    margin: 0 5px;
}